title: Impact of 3-dimensional-computed tomography workstation for precise planning of endovascular aneurysm repair.
abstract: BACKGROUND
  Compared with open surgery, imaging is considered to be important for planning and device selection of endovascular aneurysm repair (EVAR). The present study evaluated the usefulness of a 3-dimensional (3D)-computed tomography (CT) workstation in planning EVAR.
  
  
  RESULTS
  A prospective study was conducted in 8 patients who underwent EVAR using Zenith endograft between February and August 2007. Endograft size and optimized deployment projection were decided using a 3D-CT workstation. The primary endpoint was defined as successful deployment of a same size endograft as preoperatively selected without type I or III endoleak or inadvertent arterial occlusion. The following parameters were investigated: (a) incidence of use of an alternative endograft; (b) prevalence of type I or III endoleak; and (c) distance from lowest renal artery to tip of graft. Successful deployment of endograft was achieved in all 8 patients. Use of alternative endograft or type I or III endoleak was not detected in 8 patients. Distance from the lowest renal artery to the tip of the graft was 2.8mm.
  
  
  CONCLUSIONS
  Assessment using a 3D-CT workstation appears to allow accurate endograft selection and precise deployment of the Zenith endograft without type I or III endoleak, even in institutes with a small number of patients.
authors.affiliation: Department of Radiology, Nara Medical University, Kashihara, Japan. wataruhigashiura@hotmail.com
authors.forename: Wataru
authors.initials: W
authors.lastname: Higashiura
authors.forename: Shoji
authors.initials: S
authors.lastname: Sakaguchi
authors.forename: Nobuoki
authors.initials: N
authors.lastname: Tabayashi
authors.forename: Shigeki
authors.initials: S
authors.lastname: Taniguchi
authors.forename: Kimihiko
authors.initials: K
authors.lastname: Kichikawa
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001014:Aortic Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D001027:Aortography / Q000295:instrumentation*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000295:instrumentation; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D008297:Male; D011446:Prospective Studies; D011474:Prosthesis Design; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D012077:Renal Artery / Q000000981:diagnostic imaging; D015607:Stents; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D036542:Tomography, Spiral Computed / Q000295:instrumentation*; D016896:Treatment Outcome